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StarTech 2-port PCI Express RS232 Serial Adapter Card - PCIe Dual DB9
SKU# AC27044, Model# PEX2S953LP


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SKU # AC27044 | Model # PEX2S953LP | Brand StarTech

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Dual port DB9 serial controller card w/ 16950 UART using ASIX AX99100 w/bi-directional RS232 speeds up to 921.6Kbps per port; aval. 256 byte FIFO and 9th data bit - PCI Express RS232 serial adapter card w/power output of 12v/5v/none on DB9 pin 9 w/up to 2A - Expansion card pre-installed w/2x low profile brackets (standard profile bracket incl.) - Windows XP and up/Linux; Compliant w/ PCIe 1x Rev 1.1 and PCI pwr mgmt 1.2 - Use in PLCs/control/automation/medical/scanners - Lifetime warranty

Manufacturer Warranty: Limited Product Lifetime Warranty
Manufacturer Contact Info: http://www.StarTech.com.au,
Rating: 4.0 stars - 67 reviews

This RS232 Serial Adapter Card lets you add two RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slot. It enables you to interact with serial devices, such as card readers, printers, PIN pads, and modems, at speeds of up to 921.4Kbps.

Maximum Compatibility

With broad OS support, including for Windows and Linux, this PCI Express card is easy to integrate into mixed environments. The card comes pre-configured with a low-profile bracket, and includes an optional full-profile bracket, so installation is easy regardless of the case form factor.

Experience Optimal Technology

This PCIe to serial adapter supports the following features:

  • Compatible with industry standard 16950 UART
  • Supports max baud rate of up-to 921.4Kbps
  • Provides 5/12V power output on Pin 9 when external power is connected
  • 128-byte depth FIFO per transmitter and receiver
  • Supports 9, 8, 7, 6, 5 data bits
  • Asix AX99100 chipset
  • PCI Express 1.1 compliant

PEX2S953LP is backed by a StarTech.com lifetime warranty and free lifetime technical support.

Connector Type(s)PCI Express x1 Male
External PortsDB-9 (9 pin, D-Sub) Male
Internal PortsLP4 (4 pin; Large Drive Power) Male Input
Humidity5~85% RH
Operating Temperature-10°C to 80°C (14°F to 176°F)
Storage Temperature-20°C to 100°C (-4°F to 212°F)
Bus TypePCI Express
Card TypeLow Profile (SP bracket incl.)
Chipset IDAsix AX99100
Port StyleIntegrated on Card
Packaging Information
Package Height30 mm [1.2 in]
Package Length17 cm [6.7 in]
Package Width14.2 cm [5.6 in]
Shipping (Package) Weight146.4 g [5.2 oz]
Data Bits5, 6, 7, 8, 9
FIFO256 Bytes
Flow ControlNone, Xon/Xoff, RTS/CTS
Max Baud Rate921.6 Kbps
ParityNone, Odd, Even, Space, Mark
Serial ProtocolRS-232
Stop Bits1, 1.5, 2
Physical Characteristics
Product Height1.8 cm [0.7 in]
Product Length98 mm [3.9 in]
Product Width67 mm [2.6 in]
Weight of Product55.6 g [2 oz]
Description CDW 75 - 1st LineStarTech.com 2 Port RS232 Serial Adapter Card with 16950 UART - PCIe Card
Microsoft WHQL CertifiedYes
OS CompatibilityWindows® 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 2.6.x LTS Versions only
Special Notes / Requirements
NoteSelectable power output on pin 9 of the serial port
What's in the Box
Included in PackageFull-Profile Bracket
PCIe Serial Card
User Manual

SKU # AC27044 | Model # PEX2S953LP

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